Home
Class 12
CHEMISTRY
Which of the followng oxides is/are amph...

Which of the followng oxides is/are amphoteric/

A

`Na_(2)O`

B

`CaO`

C

`Al_(2)O_(3)`

D

`SnO_(2)`

Text Solution

AI Generated Solution

The correct Answer is:
To determine which of the given oxides are amphoteric, we need to analyze each oxide based on its ability to react with both acids and bases. Amphoteric oxides can react with acids to form salts and water, and they can also react with bases to form complex ions or other products. **Step-by-Step Solution:** 1. **Understanding Amphoteric Oxides**: - Amphoteric oxides are defined as oxides that can react with both acids and bases. This means they can behave as either an acid or a base depending on the reaction conditions. 2. **Analyzing Na2O (Sodium Oxide)**: - Sodium oxide (Na2O) is a metallic oxide. When it reacts with water, it forms sodium hydroxide (NaOH), which is a strong base. - Reaction: Na2O + H2O → 2 NaOH - Since Na2O only reacts with water to produce a basic hydroxide, it is classified as a basic oxide, not amphoteric. 3. **Analyzing CaO (Calcium Oxide)**: - Calcium oxide (CaO) is also a metallic oxide. It reacts with water to form calcium hydroxide (Ca(OH)2), which is also a strong base. - Reaction: CaO + H2O → Ca(OH)2 - Similar to Na2O, CaO is a basic oxide and does not exhibit amphoteric behavior. 4. **Analyzing Al2O3 (Aluminum Oxide)**: - Aluminum oxide (Al2O3) is known to be amphoteric. It can react with acids and bases. - Reaction with acid: Al2O3 + 6 HCl → 2 AlCl3 + 3 H2O - Reaction with base: Al2O3 + 2 NaOH + 3 H2O → 2 NaAl(OH)4 - Since Al2O3 reacts with both acids and bases, it is classified as an amphoteric oxide. 5. **Analyzing SnO2 (Tin(IV) Oxide)**: - Tin(IV) oxide (SnO2) is also amphoteric. It can react with acids and bases. - Reaction with acid: SnO2 + H2SO4 → Sn(SO4)2 + H2O - Reaction with base: SnO2 + 2 NaOH + 2 H2O → Na2Sn(OH)4 - SnO2 shows the ability to react with both acids and bases, confirming its classification as an amphoteric oxide. 6. **Conclusion**: - Based on the analysis, the oxides that are amphoteric are Al2O3 and SnO2. Therefore, the answer is: - **Al2O3 and SnO2 (options 3 and 4)**.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PERIODIC PROPERTIES

    VK JAISWAL ENGLISH|Exercise MATCHTHE COLUMN|11 Videos

  • PERIODIC PROPERTIES

    VK JAISWAL ENGLISH|Exercise ASSERTION-REASON TYPE QUESTIONS|36 Videos

  • PERIODIC PROPERTIES

    VK JAISWAL ENGLISH|Exercise Level 3 (Passage Type)|89 Videos

  • p-BLOCK ELEMENTS

    VK JAISWAL ENGLISH|Exercise SUBJECTIVE PROBLEMS|35 Videos

  • QUALITATIVE INORGANIC ANALYSIS

    VK JAISWAL ENGLISH|Exercise SUBJECTIVE PROBLEMS|4 Videos

Similar Questions

Explore conceptually related problems

Which of the following oxides are amphoteric?

Which of the following oxides is amphoteric is nature ?

Knowledge Check

  • Select correct answers from the choices A, B, C, D which are given. Write down only the letter corresponding to the correct answer. Which of the following oxides is amphoteric?

    A
    ZnO
    B
    CuO
    C
    FeO
    D
    CaO

  • Which of the following oxides is amphoteric is nature ?

    A
    `AI_(2)O_(3)As_(2)O_(3)ZnO`
    B
    `CO,NO,N_(2)O`
    C
    `SO_(3),SO_(2),Cl_(2)O_(7)`
    D
    `Na_(2)O,MgO,BaO`

    • Similar Questions

    Explore conceptually related problems

    Which of the following oxides is amphoteric in character ?

    Which of the following oxides is amphoteric in nature?

    Which of the following oxide is amphoteric?

    Which of the following oxide is amphoteric in nature?

    Which of the following oxides of Cr is amphoteric.

    The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on the basis of oxygen content. (a) Normal oxides : These oxides which contain oxygen atom as permitted by the normal oxidation number, i.e., -2 normal oxide may be acidic, basic, amphoteric or neutral. (b) Polyoxides : The oxides which contain oxygen atoms different than those permitted by the normal oxidation number of -2 . (i) Peroxides : Two oxygen atoms are linked to each other and oxyegen has -1 oxidation number. They contain (O -O)^(2-) unit. (ii) Superoxodes : These oxides contain (O-O)^(-1) unit, i.e., each O-atom has oxidation number -1//2 . (c) Suboxides : These contain low content of oxygen than expected. (d) Mixed oxides : These oxides are made of two simpler oxides. Which of the following oxides is paramagnetic in nature ?

    Home
    Profile